Archive whose name points to the official BIOS package for the Gigabyte B450M-DS3H-WIFI motherboard, around 11.2 MB in ZIP form. No version number or board revision is given in the name. Vendor update packages are meant for flashing through Q-Flash or similar tools, and the capsule inside may need conversion or careful handling before writing it to the chip with an external programmer. Check the release notes and board revision, and keep a backup of the original flash contents first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @zinfoservicebios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →